EVGA 780i User Manual - Page 26

pin ATX Power - power supply

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Hardware Installation Make sure you have enough power to cover all the expansion cards you will be installing. To determine what you power requirements are for your specific configuration or a certified power supply vendor, refer to www.slizone.com. 24-pin ATX Power (PWR1) PWR1 is the main power supply connector located along the edge of the board next to the DIMM slots. Make sure that the power supply cable and pins are properly aligned with the connector on the motherboard. Firmly plug the power supply cable into the connector and make sure it is secure. Board edge PWR1 connector Plug power cable from system power supply to PWR1 Figure 4. Table 1. PWR1 Motherboard Connector PWR1 Pin Assignments Connector 24 12 Pin Signal 1 13 2 +3.3V +3.3V 3 GND 4 +5V 5 GND 1 6 +5V 7 GND 8 PWROK 9 +5V_AUX 10 +12V 11 +12V 12 +3.3V Pin Signal 13 +3.3V 14 -12V 15 GND 16 PS_ON 17 GND 18 GND 19 GND 20 RSVD 21 +5V 22 +5V 23 +5V 24 GND

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Hardware Installation
Make sure you have enough power to cover all the expansion cards you will be
installing. To determine what you power requirements are for your specific
configuration or a certified power supply vendor, refer to
www.slizone.com
.
24-pin ATX Power
(PWR1)
PWR1
is the main power supply connector located along the edge of the board
next to the DIMM slots. Make sure that the power supply cable and pins are
properly aligned with the connector on the motherboard. Firmly plug the power
supply cable into the connector and make sure it is secure.
Figure 4.
PWR1 Motherboard Connector
Table 1.
PWR1 Pin Assignments
Connector
Pin
Signal
Pin
Signal
1
+3.3V
13
+3.3V
2
+3.3V
14
-12V
3
GND
15
GND
4
+5V
16
PS_ON
5
GND
17
GND
6
+5V
18
GND
7
GND
19
GND
8
PWROK
20
RSVD
9
+5V_AUX
21
+5V
10
+12V
22
+5V
11
+12V
23
+5V
24
13
12
1
12
+3.3V
24
GND
PWR1
connector
Plug power cable from system
power supply to PWR1
Board edge